body {
  min-width: 600px;
}
.content {
  width: 100%;
  height: 100%;
}
.header {
  display: flex;
  width: 100%;
  height: 56px;
  background-color: #f3f3f3;
}
.header .backmanager {
  height: 36px;
  padding: 6px 12px;
  margin: auto 4px;
}
.header .backmanager::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 5px;
  border: 2px solid #000;
  border-top: transparent;
  border-right: transparent;
  transform: rotate(45deg);
}
.header .arti_title_in {
  flex: 1;
  height: 40px;
  padding: 0 12px;
  margin-top: 8px;
  margin-right: 12px;
  border: 1px solid #000;
  border-radius: 3px;
  font-size: 16px;
}
.header .add_arti_bar_btn,
.header .arti_class_in {
  float: right;
  margin-top: 8px;
  margin-right: 8px;
}
.header .arti_class_in {
  height: 40px;
  width: 120px;
  padding-left: 8px;
  border: 1px solid #666;
  border-radius: 3px;
  font-size: 16px;
  vertical-align: middle;
}
.editor {
  width: 100%;
  height: calc(100vh - 56px);
}
